Feature - Add problem categories to AtCoder problems

[Therealchainman]

Hello,

Thanks for your work on clist, @aropan

I really enjoy the clist website and have been using it for a while. I like the problems on AtCoder, but there is no way to filter them by categories. Is it possible to add expected category by using LLM with the editorial for problem as a text prompt and predict the categories for each problem?

I presume that for websites like codeforces and leetcode it is just scraping the categories. But atcoder doesn't add a category to it's problems so that is why I wonder if this could be a viable method to generate them.

I would be willing to work on this feature.